Java OOP in Arabic

Learn how a class acts as a blueprint for objects, how constructors initialize them, and how templates, factories, and overloading enable multiple iPhone models.

Explore how constructors initialize class attributes in Java, including default and parameterized forms, use access modifiers such as public, private, and protected, and apply the singleton pattern.

Explore encapsulation and other core OOP concepts such as inheritance, abstraction, and polymorphism, and learn how access modifiers like private, public, protected, and default govern attributes and data.

Explore encapsulation in Java with setters and getters, using private attributes and public methods to control access to class fields like name and id.

Implement an account class with id, name, and balance; provide constructor with parameters; expose getters; implement credit, debit, and transfer methods with balance checks.

Explore inheritance and encapsulation in Java OOP by building parent and child classes with attributes, methods, getters and setters, and overriding techniques across teacher and student examples.

Learn how a student class extends a person base class and how inheritance works with teachers, using encapsulation, setters and getters, and method overriding.

Explore how composition and inheritance shape relationships, contrasting has a relationship with is a relationship, and highlighting encapsulation, abstraction, and polymorphism.

Learn abstraction and interface concepts in Java, including interface contracts and abstract methods, implemented by classes handling payments such as credit card and PayPal.

Explore abstraction with abstract classes and interfaces, define abstract methods as contract methods, implement them in concrete classes, and note that abstract classes cannot be instantiated.

Explore polymorphism in a shape hierarchy built with an abstract class and concrete shapes like square, rectangle, and circle, with overridden area methods and runtime object selection.

Learn how Java enums define a predefined set of constant values, illustrated by days of the week such as Saturday and Sunday.